How are the update streams run in the benchmark? Are they optional?
The term “update stream” is pertinent only to the throughput test of the benchmark, however the “update functions” (UF1: inserts; UF2: deletes) must be run in both the power and throughput tests of the benchmark. The power test mandates that UF1 precedes the queries, and UF2 immediately follows the last query; however in this case the update functions are not considered as being part of an “update stream”. The throughput test does require a separate update stream consisting of pairs of alternating UF1/UF2 executions, the number of pairs being equal to the number of query streams the test sponsor chooses to run. The inserts done within each execution of UF1 may be done in parallel (as can the deletes in UF2), but UF1/UF2 pairs must be executed sequentially, and within each pair, UF2 must not commence until UF1 is complete. In the throughput test, the scheduling of the updates is not specified relative to the query streams. Thus, test sponsors may execute the updates concurrently with th
